Hammer2.1 1.5b EU AI Act Compliance Profile

Hammer2.1-1.5b Function Calling Model

<span style="color: red;">New Update (June 2025):</span> We are excited to announce that our model has been integrated into Google AI Edge! This integration allows for seamless on-device inference, enabling users to experience the power of our model directly on their mobile devices. For more details, please visit Google AI Edge.

Introduction

Hammer refers to a series of lightweight Large Action Models. Currently, we are releasing Hammer 2.1 models (0.5B, 1.5B, 3B, and 7B) with strong function calling capability. These models are based on the Qwen 2.5 coder series and utilize function masking techniques and other advanced technologies. Hammer 2.1 series bring significant enhancements, while still maintaining the basic functionality of Hammer 2.0's Single-Turn interaction and further strengthening other capabilities.

Model Details

The Hammer 2.1 models, fine-tuned from the Qwen 2.5 coder series, inherit Hammer 2.0's advantages and are enhanced as follows:

• <span style="color: red;">Multi-Step Function Calling:</span> The assistant can perform multiple internal function calls to handle a single user request, actively planning and gathering information to fulfill complex tasks.
• <span style="color: red;">Multi-Turn Function Calling:</span> Enables continuous and context-aware interactions over multiple exchanges, with each turn potentially containing multiple steps, for a more natural conversation experience.
• Enhanced Irrelevant Information Inspection: Better at identifying when provided functions are irrelevant to a user query, by providing a non-function call response.

Evaluation

The evaluati

Your obligations as a Hammer2.1 1.5b deployer

Track your progress

Sign up to track obligations, receive deadline reminders, and generate audit packages.

Tags

Base Model